Improvement in sash-fastenings



UNITED STATES ELI S, BITNER, OF LOCK PATENT OFFICE@- HAVEN, PENNSYLVANIA.

Specification forming partof Letters Patent N0. 54,843,

.To all whom t may concern:

Beit known that I, ELI S. BITNER, of Lock Haven, Clinton county, State of Pennsylvania, have invented an Improved Vindow -Sash Lock, and I do hereby declare the following to be an exact description thereof, reference being had to the accompanying drawings, and to the letters ot' reference marked thereon, making` a part ot this specification.

Figure l represents a window with the lock attached, the red lines showing` the movement ot' the spring' and bolt as operated by the lever. Fig. 2 represents the spring and lever, and Fig. 3 the face-plate in which the bolt operates and by which the bolt is strengthcned.

The nature ot my invention consists in the arrangementainl construction of a strong` bolt, A, which passes about one-fourth ot an inch into the sash, and is made firm and strong` by passing through a square aperture in the metal face-plate B, that is fastened to the windowframe. The bolt is attached to the lower end 0f a stiff spring, C. The spring is moved by a lever, D, that is placed in a convenient position in the window-frame. This leverD has a neat dated May 22, 1866.

f plated button, E, on the Outerend and a Harige, G, at the other end, the end of the lever Working in a journal-box, H, and the flange G operating as a key upon the spring, so that by moving the leverD aha-l -inch up or down the tlangeG is pressed against the springI until the spring' catches the ilange in the curve Jol' the spring, when the spring closes and the bolt A flies forward and catches in a notch, K,

I in the sash, and the window is securely held land locked, so that it cannot belraised from the outside, or, when raised, it will not fall down, but is held by the bolt at any required ,l height.

WVhat I claim as my invention, and desire to secureby Letters Patent, is-

The lever D, with flange C and knob E, coni strueted and connected with plate B, as shown, in combination with the spring` G, havingfthe spur A at its end, all arranged and operating,- as herein shown and described.

ELI S. BITNER. 

